Window construction



7 J. SYLVAN wmnow' CONSTRUCTION Filed Oct. 5, 1921 Dgg. 30, 1924.

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2 Sheets-Shet 2 J SYLVAN WINDOW CONSTRUCTION I Filed Oct. 5; 1921 Dec, 30, 1924.; I

Patented Dec. 30, 1924.

- UNITED. STATES TNT Josnrn sYLvAN, or crcnno; ILLINOIS.

WINDOW oonsrnncrron.

. Application filed October 3, 1921. Serial No. 505,104.

To all 10720120 it may cancer 1i Be 1t known that I, JOSEPH SYLVAN, a citizen of the United States,- and a resldent of Cicero in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Window Constructions; and I do hereby declare that the following is a full, clear, and-exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to improvements in window constructions and consists of the matters hereinafter described and more particularly pointed out in the appended claims. Y

One of the objects of the invention is to provide awindow construction wherein the sash are vertically slidablo in the frame,

with the top sash of one set. of sash so 'con-.

nected with the bottom sash of another set of sash, that said top and bottom sash act as the counter balance for each other.

Another object of the invention is to improve the construction of the means providing the guides between the sash and the frame, said means being adjustable to eliminate rattling of the sash in the frame. Other objects of the invention as well the many advantages thereof will more fully appear as I proceed with my specification.

In the drawings sets of window sash embodying my invention, as viewed from the inside of a room. Figure 2 isa horizontal sectional view through Fig. 1 on the line 2-? thereof;

Figure 3 is a vertical sectional view on an enlarged scale through. one set of sash and associated frame parts, the plane of the section being indicated by the line 33 of Fig. 1;

Figured is aLhorizontal sectional view through the lintel or head of the frame as taken on the line %l t of Fig. 3 5- Figure 5 is an enlarged horizontal detail sectional View through one-of the window jambs as taken .on-the line 5- 5 of Fig.1; Figure 6 1s a detail perspective view of one corner of a Windowsash andwill be more specifically referred to later;

Figure 7 1s a diagrammatic perspective Figure 1. is a view in elevation, of two view showing the manner of attaching the window sash to their associated shafts in the lintel or head of the window frame.

Referring now in detail to that embodiment of the invention illustrated in the accompanying drawings-5 indicates as a whole, a window frame for a double set of window sash. Said frame includes upright side jambs G6 intermediate upright 'mullion 7, a head or lintel S and asill 9 connected together in any suitable manner.

Each set of window sash comprises top and bottom window sash 1010, 11-11 respectively, and fixed to the side member of each sash is a laterally extending vertical flange 12, forming apart of an angle bar in'ibedded in the side of the sash. Said flange may extend the full length of said sash if so desired.

Mounted on the side faces of the jambs and mullion are upright sheet metal channel members 13. Each channel comprises a bowed or arched back wall 1 1, and side walls 15 and 10 respectively which terminate in oppositely facing flanges 17-18 arranged at right anglesto said side walls. Associated with each channel and positioned between the flanges thereof. is a U-shaped sheet metal parting strip 19 which includes side flanges 20 and a web 2-2; the side flanges 20 enga e in grooves 21 in the back wall 1 1 of the channel. and the web is arranged in the plane of but is spaced from the edges of the flanges 17 and 18 to define therewith spaced slots 23-23 in which the flanges 12 of the window sash extend in a manner providing a guided sliding bearing for the same.

In the web 22 of each U-shaped partingstrip 19 is provided av pliu-ality of vertically spaced countersunk holes 2%- to receive the heads of screws These screwsextend through registering holes in the back wall of the channels and are screwed into the wood of the jambs and inullion. To finish off the appearance of the jainbs and mullion after the channels have been applied, I provide the moulding strips 6, 7 respectively. Should the slots 23 defined by the flangesvll and 18 of the channelstogcther with the web 22 of the U-shaped strip 19 be too wide for the flanges 12 o'f the sash so that v the same would rattle under wind pressure, said slots may be adjusted or re stricted by tightening up on the screws 25.

This will draw the web 22 inwardly and through the side flanges 20, will tend vto straighten out the arched or bowed back wall and thus cause the flanges 17 and 18 'of the channels to more closely approach each other until the desired width of-s'lots 23 is attained.

In the head of the window frame is provided a horizontally elongatedsheet metal box 26, of a depth a trifle greater than the width of the channels l3, as shown in Fig.

Insaid box'are two horizontalshafts v 27-28, arranged in the plane of the top and bottom window sash. In the bottom wallof this box are provided openings 29 in line and communicating with the top end of veach channel member 13. Fixed to each shaft or cables 33, which are wound in an opposite direction upon .the drums 30 on the same shaft. The top sash 10 of the first set of sash and the bottom sash 11" of the wotherset of sash also have flexible members or cables I .a window frame member, hollow jamb mem- 3435 respectively secured to them and Wound in opposite direction upon the drums Ell--31 on the other shaft 28. Thisconnection between the shafts and sash is clearly shown in the diagram illustrated in '7. From this diagram it is amparent-that the top sash of one set counter balances the bot tom sash of the other set and "vice versa, so that when one lower sash is raised or slid upwardly in the window-frame, the other top-sash descends. In attaching the flexible members 3233-34;-a-nd 35 to their respective sash, I prefer to attach them to, the flanges 12 thereof near the bottom end and for that purpose I providea plurality of holes 12* in said flanges so that adjustments may be made for any inequalities as may exist in the length of flexible members used.

It is apparent that the flexible members are located within the channels13, .so that all that appears to the observer is the slid ing windowsash in the frame. Should it be desired, the two sets of sash maybe arranged in frames spaced a distance from each other instead of being closely adjacent as shown, ,andin that case all that is necessary is to provide the proper length of shaft. 7 As my improved construction eliminates the use of counter-balancing weights, I do not .need to provide the usual boxlike jambs and mullion for said weights. Thus the mullions. may be made narrower for the greater admission of natural light, and the cost .of the frames 15 greatly reduced.

't-ion mentioned.

Furthermore, the complete frame and sash may be assembled in the shop, ready'for installation upon the job.

The sash operate easily and without bindmg and by means of the channel construc- While in describing myinvention I have referred to certain details of construction and a'rra'ngement of parts as well as in the form thereof, I do not wish to belimited thereto except as maybe pointed out in the appended claims- I claim as my invention lower sash, means providing frame members in which said sash are vertically slidable, a pair of shafts arranged in the top ends of said frame members, circular members on each pair of; shafts, means connecting the bottom sash'of one set and the topsash of another set with the circular members on one shaft, and,means-connecting the bottom sash of the second set and the'top sash of the first ,set with said circular members on the second 1. Incombination with a plurality of sets of sash, eachset comprising an upper and a shaft, so that;whenone sash of one set is moved vertically the other sash of the other set moves simultaneously therewith in an 019 posite direction and counterbalances the same;

:2. ln' combination 'with'means providing here in the frame having vertically arranged slots therein, two sets of sash, each set comprising an upper and a lower sash, vierticall,

movable in said frame, meanson said sas'i f extending through the slots of the hollow jambmembers and intothe interior thereof.

and guidingthe movement of the sash. with reference to saldjam members, two shafts arranged in. the top end of said frame mom her and extend n'gparallel with said sash, 'drumson eachshaft', and means located 111 3. In combination with means providing.

a window frame member, hollow jamb members in theframe having vertically arranged slots therein, sets of top: and bottom w ndow sash vertically movable in said frame, means on said sash extending through the slots of thehollowjambmembers and into the interior thereof and guiding the movement of thesash with reference to said jamb members, a shaft arranged in the top end of said frame member, drums on said- .shaft, flexible members secured to the guide means of the bot-tom sash of one set of sash disposed with- 111 the jamb members and wound 111 0118 (lirection upon some of said drums, and-similea therewith in an opposite direction and counterbalances the same.

4. In combination with means providing a window frame having side jambs and an intermediate mullion, two sets of sash, each set comprising an upper and a lower sash,

vertically slidab-le in said jambs and mullion, two shafts j ournalled in the top of said frame, drums fixed to said shafts, there being two pairs of drums on each shaft, one pair of drums on one shaft being associated with the bottom sash of one setand the other pair of drums on said shaft being associated with the topsash of the other set, the drums on the other shaft being likewise connected to the other top and bottom sash, and flexible means wound about the respective pairs of drums on each shaft, in opposite directions and connected respectively to the bottom sash of one set and the top sash of the other set.

5. In a window construction, the combination of a window frame having side frame members, jainbrails fixed to said side frame members, said rails each comprising a sheet metal channel having oppositely facing flanges, and a Ushaped sheet metal parting strip in the jamb railchannel and defining with the flanges thereof laterally spaced slots to receive parts of window sash to guide the I same in their vertical sliding movement with respect to said jamb-rails, and means for securing said parting strip in position, said means being capable of being actuated to produce a relative movement between said channel flanges and said parting strip to determine the width of said slots.

6. In a window construction, the combination of a window frame having side frame members, jamb rails fixed to said side frame members, said rails each comprising a sheet metal channel having oppositely facing flanges, a U-shaped sheet metal parting strip in the jamb rail channel and defining with the flanges thereof laterally spaced slots to receive parts of window sash to guide the same in the vertical sliding movement with respect tosaid jamb rails, and means passing through the U-shaped parting strips and jamb rail and into the side frame members to hold said jamb rail and strip in position, said means being capable of being actuated to produce a relative movement between said channel flanges and said parting strip to determine the width of said slots.

7. In a window construction, the combination of a window frame having side frame members, jamb rails fixed to said side frame members, said rails each comprising a sheet metal channel having an outwardly bowed back wall and oppositely facing flanges, and a parting strip in the jamb rail channel and defining with the flanges thereof, laterally spaced slots to receive parts of the window sash to guide the same in the vertical sliding movement with respect to the jamb rails, and means associated with the parting strip for securing the channel and parting strip to the side frame members, said means acting in conjunction with the parting strip to flex the channel to vary the width of said slots.

8. In a window structure comprising a frame having a jamb portion, the combination of a rail and screws securing said rail to said jamb, said rail comprising a sheet metal channel having a transversely bowed back wall and two side walls and flanges extending inwardly toward each other from said side walls, the edges of said flanges being spaced apart, and a screw receiving parting strip located between the edges of the channel flanges and defining therewith two laterally space d slots, said parting strip also engaging the intermediate part of the bowed back wall and being adapted to apply pressure thereto upon tightening of the screws to cause the flanges of the channel strip to more closely approach the parting strip and define the effective opening of said slots.

In testimony that I claim the foregoing as my invention, I affix my signature in the presence of two witnesses, this 26th day of I September, A. D. 1921.

JOSEPH SYLVAN. Witnesses CLARENCE E. Bu'nnnnzorn, T. H. Anrnnns. 

